Underdays

Underdays, founded in 2021 by Amelie Salas and Oria Mackenzie, is a women's underwear brand that combines luxury fabrics with world-class design. Their philosophy redefines underwear as self-care, offering high-quality products that balance comfort and style. The brand emphasizes sustainability, using only OEKO-TEX-certified materials free from harmful substances. Moreover, they have a commitment to sourcing from independently certified factories adhering to the highest environmental and social standards. Underdays also dedicates itself to supporting women’s health and engages closely with the community for various charity collaborations.

Underdays customers are modern women who value comfort, style, and sustainability in their underwear. They appreciate the brand's focus on women's health and the innovative solutions-driven designs that cater to their needs.

• Underdays underwear are comfortable and cute, great for the gym
• The Brazilian cut from Underdays looks sexy when worn
• Underdays underwear are made of great quality fabric and fit
• Underdays underwear are soft and comfortable to wear
• Underdays underwear are perfect for everyday use

• The sizing and fit may not work for all body types
• The waistband could use improvement to prevent bunching and rolling
• The printed slogan inside the gusset may not hold up well after multiple washes
• The design may cause the underwear to require frequent readjustment

Underdays offers two UK shipping options: Standard Delivery for £3.00, which takes 3-5 business days, and Next Day Delivery for £6.00, which requires orders to be placed before 1 PM GMT from Monday to Thursday to ensure next business day delivery. For non-mainland UK addresses, standard delivery may take up to 5 business days. Shipping times might be extended during busy sales periods, such as the holiday season. Internationally, Underdays ships to the USA, with Standard Shipping costing £11.5 and taking 5-7 working days, and Express Shipping costing £26 and taking 2-10 working days. Note that shipping prices may vary at checkout. Customers are responsible for any import duties and taxes for shipments outside the UK.

Underdays has streamlined its return process through an online returns portal, requiring only the customer's order number and email address. Returns must be made within 30 days of dispatch, and items should be in their original condition, unworn, unwashed, with hygiene stickers and swing tags intact. Refunds, exchanges, or store credits will be issued after a 14-business-day inspection period. Note that items from seasonal sales, complimentary items, and final sale items are not eligible for returns, and shipping costs are non-refundable. Currently, international returns are not accepted outside the UK.